Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ae668d414ad9bb4…

MALICIOUS

PDF

15.7 KB Created: 2019-04-30 04:42:51 +01:00 Authoring application: mPDF 5.7
MD5: c339249ca753b6577bb610754e302df9 SHA-1: 676ec293e3c5eb29d3c1c469bbbd65d7c3a2af4e SHA-256: 1ae668d414ad9bb4bf652d33356478bbba0ed0439b0f959819dcbe444bbe8031
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded URLs, as indicated by the PDF_SEO_LINK_FARM heuristic. These URLs point to various book titles, but the sheer volume and the ML classifier's high confidence score suggest a malicious intent, likely for SEO manipulation or to redirect users to malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9778

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://muicuiu.dumb1.com/2a08a05a05/Seven-Black-Diamonds-Seven-Black-Diamonds-1-by-Melissa-Marr.pdf
    • http://muicuiu.dumb1.com/1a04a01a06a07a02/Black-Diamonds-The-Rise-and-Fall-of-an-English-Dynasty-by-Catherine-Bailey.pdf
    • http://muicuiu.dumb1.com/7a01a07a08a05a00/Les-100-Facettes-de-Mr-Diamonds---Vol-13-ternel-One-Hundred-Facets-of-Mr-Diamonds-13-by-Emma-Green.pdf
    • http://muicuiu.dumb1.com/7a06a09a01a05a03/The-Holstein-Diamonds-by-A-L-Provost.pdf
    • http://muicuiu.dumb1.com/5a09a04a08a00a01/Diamonds-by-James-Eddy.pdf
    • http://muicuiu.dumb1.com/8a01a03a00a00a07/The-Steinberg-Diamonds-by-Marc-Brosnan.pdf
    • http://muicuiu.dumb1.com/2a05a01a07a08/Moonlight-and-Diamonds-by-Michele-Hauf.pdf
    • http://muicuiu.dumb1.com/4a03a00a00a01a08/The-Nature-of-Diamonds-by-George-E-Harlow.pdf
    • http://muicuiu.dumb1.com/1a00a05a03a08a01a08/Diamonds-for-Dusty-Roads-by-Joy-Haney.pdf
    • http://muicuiu.dumb1.com/2a08a02a04a00a03/Mrs-Darcy-s-Diamonds-by-Jane-Odiwe.pdf
    • http://muicuiu.dumb1.com/9a08a09a06a00a09/Diamonds-in-the-Ruff-by-Timothy-T-Civick.pdf
    • http://muicuiu.dumb1.com/3a03a08a06a05a02/Diamonds-and-Daisies-by-Bernadette-Strachan.pdf
    • http://muicuiu.dumb1.com/9a02a00a06a08a06/C-J-Brown-s-Diamonds-in-the-Rough-by-Ron-Nichols.pdf
    • http://muicuiu.dumb1.com/4a09a06a01a00a08/The-Eustace-Diamonds-by-Anthony-Trollope.pdf
    • http://muicuiu.dumb1.com/3a00a03a09a05a04/Bride-of-Diamonds-by-Emma-Darcy.pdf
    • http://muicuiu.dumb1.com/2a02a05a07a02a05/The-Truth-About-Diamonds-by-Nicole-Richie.pdf
    • http://muicuiu.dumb1.com/1a07a01a02a07a02/Diamonds-Life-According-to-Maps-2-by-Nash-Summers.pdf
    • http://muicuiu.dumb1.com/6a09a03a01a08a08/A-Very-Coveted-Diamonds-Jewellery-by-Patrice-Martinez.pdf
    • http://muicuiu.dumb1.com/1a04a06a08a08a00/The-Diamonds-at-the-Bottom-of-the-Sea-and-Other-Stories-by-Desmond-Hogan.pdf
    • http://muicuiu.dumb1.com/4a01a06a03a05a04/The-Queen-of-Diamonds-Red-Dog-Conspiracy-2-by-Patricia-Loofbourrow.pdf
    • http://muicuiu.dumb1.com/9a08a09a06a00a09/Diamonds-in-the-Ruff-by-Timothy-T-Civick

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